| Business | Phone |
| Betunia Citgo 7114 S Vincennes Ave, Chicago 60621 | (773) 224-3108 |
| Gas Innovations 7852 S Eberhart Ave, Chicago 60619 | (773) 488-6100 |
| Energon Inc 33 N La Salle St 2400, Chicago 60602 | (312) 443-5700 |
| Daniel Realty Investment Corp 1210 W Granville Ave, Chicago 60660 | (773) 381-9445 |